Question: What is the most metallic galaxy discovered by James Dunlop?
Paraphrase: Which galaxy discovered by James Dunlop has the highest metallicity?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q11276 . ?ent wdt:P2227 ?obj . ?ent wdt:P61 wd:Q375158 } ORDER BY DESC(?obj)LIMIT 5 
Answer: NGC 6388, NGC 1846, NGC 6652, NGC 6352, NGC 6441